2156445415224 has 96 divisors (see below), whose sum is σ = 6155973336240. Its totient is φ = 707031244800.

The previous prime is 2156445415207. The next prime is 2156445415231. The reversal of 2156445415224 is 4225145446512.

2156445415224 is a `hidden beast` number, since 2 + 1 + 5 + 6 + 4 + 4 + 5 + 415 + 224 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2156445415224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8973897 + ... + 9211064.

Almost surely, 2^{2156445415224} is an apocalyptic number.

2156445415224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2156445415224 is an abundant number, since it is smaller than the sum of its proper divisors (3999527921016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156445415224 is a wasteful number, since it uses less digits than its factorization.

2156445415224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18185043 (or 18185027 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 45.

The spelling of 2156445415224 in words is "two trillion, one hundred fifty-six billion, four hundred forty-five million, four hundred fifteen thousand, two hundred twenty-four".